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Mend.io Vulnerability Database

CVE-2021-4011

Date: December 17, 2021

A flaw was found in xorg-x11-server in versions before 21.1.2 and before 1.20.14. An out-of-bounds access can occur in the SwapCreateRegister function. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

Severity Score

7.8

Related Resources (17)

Url: https://www.debian.org/security/2021/dsa-5027

Url: https://security.netapp.com/advisory/ntap-20220114-0004/

Url: https://nvd.nist.gov/vuln/detail/CVE-2021-4011

Url: https://lists.debian.org/debian-lts-announce/2021/12/msg00035.html

Url: https://security-tracker.debian.org/tracker/CVE-2021-4011

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PDHYZM6FII35JA7J275MFCJO6ADJUPQX/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NKLSZCY47QK4RCJFXITYFALCGPJAFXOK/

Url: https://www.zerodayinitiative.com/advisories/ZDI-21-1550/

Url: https://access.redhat.com/security/cve/CVE-2021-4011

Url: https://lists.x.org/archives/xorg-announce/2021-December/003122.html

Url: https://security.alpinelinux.org/vuln/CVE-2021-4011

Url: https://lists.x.org/archives/xorg-announce/2021-December/003124.html

Url: https://security.gentoo.org/glsa/202305-30

Url: https://people.canonical.com/~ubuntu-security/cve/CVE-2021-4011

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NXTRPFEQLFZ6NT2LPLZEID664RGC3OCC/

Url: https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/T57DCF726O5LLTST4NBL5PQ7DLPB46HT/

Url: https://www.mend.io/vulnerability-database/CVE-2021-4011

Severity Score

7.8

Weakness Type (CWE)

Buffer Errors

CWE-119

CVSS v3.1

Base Score:	7.8
Attack Vector (AV):	LOCAL
Attack Complexity (AC):	LOW
Privileges Required (PR):	LOW
User Interaction (UI):	NONE
Scope (S):	UNCHANGED
Confidentiality (C):	HIGH
Integrity (I):	HIGH
Availability (A):	HIGH

CVSS v2

Base Score:	7.2
Access Vector (AV):	LOCAL
Access Complexity (AC):	LOW
Authentication (AU):	NONE
Confidentiality (C):	COMPLETE
Integrity (I):	COMPLETE
Availability (A):	COMPLETE
Additional information:

Mend.io Vulnerability Database

We found results for “”

CVE-2021-4011

Date: December 17, 2021

Severity Score

Related Resources (17)

Severity Score

Weakness Type (CWE)

CVSS v3.1

CVSS v2

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